tabcontainer default tab failing to change to an active state →
TabContainer: default tab failing to change to an active state

I tried this and it's working for me. Please attach a test case using the "attach file" button, a full HTML file that we can load in the browser and use to reproduce then problem. (You should do this for all tickets.)

Because we get so many tickets, we often need to return them to the initial reporter for more information. If that person does not reply within 14 days, the ticket will automatically be closed, and that has happened in this case. If you still are interested in pursuing this issue, feel free to add a comment with the requested information and we will be happy to reopen the ticket if it is still valid. Thanks!